<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style>
        *{margin: 0;padding: 0}
        .one{
            width: 800px;
            height: 900px;
            background-color: aquamarine;
            position: relative;
            top: 500px;
            left: 600px;
        }
        .two{
            width: 100px;
            height: 60px;
            background-color: crimson;
            position: absolute;
            right: 50px;
            bottom:50px;
        }
        .three {
            width: 80px;
            height: 70px;
            background-color: palevioletred;
            position: fixed;
            top: 50px;
        }



    </style>
</head>
<body>
<div class="one">
    <div class="two"></div>
</div>
<div class="three"></div>

</body>
</html>